What is the spontaneous change in specific optical rotation of an optically active carbohydrate solution until an equilibrium value is reached termed?
Answer and explanation
Correct answer: C. Mutarotation
- Step 1: When pure -D-glucose () or -D-glucose () is dissolved in water, an equilibrium mixture forming an open-chain intermediate establishes.
- Step 2: The specific rotation shifts spontaneously until it stabilizes at .
- Step 3: This phenomenon is called mutarotation.
Answer
Mutarotation.
Why not the others: Inversion refers to the sign change during sucrose hydrolysis; optical resolution separates enantiomers; and racemization converts an active isomer into an inactive 1:1 mixture.
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